Did you know? The oldest bridge in the NBI was built in 1697.
Did you know? The oldest bridge in the NBI was built in 1697.
Infrastructure Grade
Infrastructure Report Card
1.1% of bridges in poor condition
Total Bridges
8,587
Poor Condition
95(1.1%)
Avg Bridge Age
49 yrs
Trend
Stable
| Metric | Arizona | National Avg | Trend |
|---|---|---|---|
| % Poor Condition | 1.1% | 6.7% | Stable |
| vs. National Average | -5.6 pts | -- | -- |
| Average Bridge Age | 49 yrs | 48 yrs | -- |
| Good or Better | 2,020(23.5%) | -- | -- |
Grade Scale
Percentage of bridges in poor condition over time. The dashed line shows the national average for comparison.
Total Bridges
8,587
Poor Condition
95(1.1%)
Average Age
49 yrs
Daily Crossings
121.1M
Good or Better
2,020(23.5%)
These bridges have at least one major component rated "5" (Fair) — one step above the poor threshold. Sorted by daily traffic to highlight highest-impact structures at risk.
| Bridge | Location | Deck | Super | Sub | Daily Traffic |
|---|---|---|---|---|---|
| I 10 WB | Maricopa County | 7 | 5 | 6 | 135,909 |
| L 202 EB | Maricopa County | 7 | 5 | 7 | 134,326 |
| I 10; EB & WB | Maricopa County | 5 | 7 | 7 | 117,310 |
| I 10 EB | Maricopa County | 7 | 5 | 6 | 112,747 |
| Bell Road | Maricopa County | 5 | 5 | 6 | 65,040 |
| Cactus Road | Maricopa County | 5 | 5 | 6 | 57,843 |
| I 10; EB | Pima County | 5 | 5 | 6 | 49,889 |
| I 10; WB | Pima County | 5 | 5 | 6 | 48,126 |
| 19th Avenue | Maricopa County | 5 | 5 | 6 | 44,130 |
| I 10; EB | Pima County | 5 | 7 | 7 | 43,726 |
| 51st Avenue | Maricopa County | 5 | 5 | 6 | 43,025 |
| Rural Road | Maricopa County | 5 | 5 | 6 | 38,919 |
| SB 101 to EB 60 | Maricopa County | 7 | 5 | 7 | 38,554 |
| Speedway Blvd | Pima County | 5 | 7 | 6 | 38,203 |
| Bell Road | Maricopa County | 5 | 5 | 6 | 38,142 |
The 10 bridges in poorest condition, ranked by lowest sufficiency rating.
over OAK DRAW
over Ajo Wash
over CALVA WASH
over WHITE RIVER
over UPPER BONITO WASH
over GILA RIVER
over SOUTHERN PACIFIC RR
over WALKER CREEK
over Babocomari Creek
over LAGUNA CREEK
States with similar infrastructure profiles, ranked by percentage of bridges in poor condition.
Grading: Grades are based on the percentage of bridges classified as "poor condition." A bridge is in poor condition when at least one major component (deck, superstructure, or substructure) is rated 4 or below on the NBI 0-9 scale.
Data Source: Federal Highway Administration (FHWA) National Bridge Inventory (NBI). Data is updated annually. BridgeStats is not affiliated with or endorsed by the FHWA.
Watchlist Criteria: Bridges with any component rated "5" (Fair) are one step from the poor threshold of 4 and are flagged for monitoring. These bridges are not yet in poor condition but may deteriorate without maintenance.